Hello,
I am at the moment investigating APL applications in teaching elementary math - I mean such topics like elementary algebra, elementary functions, and several others like combinatorics, probability and number theory discussed on high school level of
sophistication.

And It seems that the creator of APL - Dr. Kennet Iverson - and other people from APL community have developed several brilliant text for such a level of sophistication:
- Iverson K.E. Algebra
- Iverson K.E. Elementary Functions
- Iverson K.E. The use of APL in Teaching
- Iverson K.E. Introducing APL to Teachers
- Thomson N. APL Programs for the Mathematics Classroom

I have all the above texts at hand and experimenting with the material using genuine APL/360 (many thanks to Jürgen Winkelmann https://wotho.ethz.ch/mvt4apl-2.00/ and all the people who made it possible to run the system on GNU/Linux as well as on
Windows and MacOS)
and I-APL (https://code.jsoftware.com/wiki/Essays/History_of_I-APL)

I want to learn more on this direction and wonder does someone here could point me on some other texts (digital copies preferred)?

In particular I am searching for digital copy of:
- Berry P. at al. APL and Insight: Using Functions to Represent Concepts in Teaching, IBM, 1971.
- Linda Alvord's book "Probability in APL".

APL physics text at similar level of sophistication would be interesting also. (Physics in APL2 by G.J. Ghaitin is awesome and it would be great to learn something else in this direction).

Any help would be highly appreciated.

Thanks in advance,
Alexey

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